The role involves building and maintaining scalable back-end services and RESTful APIs in Python, collaborating with front-end, DevOps, and other teams, optimizing for performance, reliability, and security, and improving existing systems. Preferred experience includes Django/Flask/FastAPI, SQL/NoSQL and ORM usage, Git, and familiarity with containerization (Docker/Kubernetes), cloud providers (AWS/GCP/Azure), Celery, Pytest, CI/CD, and microservices. Minimum professional experience: 1 year.

Build, test, and maintain scalable back-end services and RESTful APIs in Python (Django/Flask/FastAPI). Work with SQL/NoSQL databases and ORMs, collaborate with front-end and DevOps teams, and focus on performance, reliability, and security. 1–3 years professional experience required. 100% remote, LATAM-based role.

Lead the technical architecture and development of Thunderbird Web Services (examples: calendar, secure file storage). Responsibilities include writing code and prototypes, establishing software patterns, building analytics and infrastructure, mentoring engineers, and collaborating remotely across product, design, QA, and community contributors. Full-time, fully remote role for applicants residing in and authorized to work in Canada; no visa sponsorship provided. Periodic international travel may be required.

Seeking a Backend Engineer with 4+ years' experience in backend development using JavaScript/TypeScript (Node.js, Nest.js, KoaJs), C#/.NET (ASP.NET MVC5, Web API 2), microservices, REST/GraphQL, SQL Server, MongoDB/DynamoDB and AWS (ECS/Fargate, Lambda, ElastiCache, Redis, SQS). Location: Perú — hybrid, occasional on-site in San Isidro.

Join Topstep's TRM Engineering team to design, build, and operate full-stack features end-to-end with emphasis on reliability, security, and scalability. Work primarily in TypeScript across Node.js and React, contribute to architecture and operational excellence, participate in on-call rotation, and mentor peers.

Work directly with the CEO and CTO to design, build, and own a multi-tenant, serverless monorepo telehealth platform. Responsibilities include shipping end-to-end product experiences, writing well-tested code, working across the stack (interface through API to database), leveraging LLMs (Claude, Cursor) in development, and building for scale, performance, accessibility, and reliability. Key technologies called out: TypeScript, Next.js, React, tRPC, Prisma, SST, Node.js, Drizzle, AWS services (SQS, EventBridge, Lambda), and SQL/datastore schema design.

Work on fullstack features for RUM including frontend UX, backend services, APIs, and columnar/analytical storage to ingest and query high-cardinality, high-volume telemetry (sessions, events, traces). Requires ~5+ years experience, strong frontend (TypeScript/React) and backend (Go preferred) skills, and experience with distributed, cloud-native systems and observability tooling.

Join Grafana Labs' RUM team to build fullstack features that span frontend user experiences, backend services, APIs, and columnar/analytical storage for high-cardinality, high-volume telemetry (sessions, events, traces, logs). Requires 5+ years fullstack experience; frontend with TypeScript and React; backend experience (Go preferred); familiarity with distributed systems (Kafka, ClickHouse/Pinot, Cassandra, Postgres), cloud-native tools (Docker, Kubernetes, AWS/GCP/Azure), OpenTelemetry, data modeling, and query optimization. Role is 100% remote (Canada market) and includes a stated Canadian OTE/base range.

Hiring a Backend Java Engineer to design, develop, and maintain scalable backend applications using Java and Spring Boot; build and optimize cloud-native microservices on AWS ECS; develop and manage integrations with DynamoDB and other storage solutions; collaborate with cross-functional teams. Required: 4 years backend development experience, Java, Spring Boot, REST APIs, microservices, AWS (ECS), DynamoDB, SQL, Git, Agile. Preferred: additional AWS services, CI/CD/DevOps, Docker, event-driven architectures, monitoring, Linux, JIRA.

Upsun is hiring a remote Software Engineer to build and maintain backend billing services and integrations (invoices, taxes, usage-based billing) primarily in Go. The role requires ownership of billing components, collaboration with Finance/Product/Support, and at least 3 years of professional Go backend development experience with relational databases and API integration experience. Hiring is focused on Canada, France, Germany, Spain, and the United Kingdom; visa sponsorship is not available.

Remote Senior Software Engineer role owning end-to-end backend billing components (in Go): usage-based billing, invoicing, integrations with third-party billing systems, and reliability/ security of payment-related services. Works cross-functionally with Finance, Product, and Support, mentors engineers, and troubleshoots distributed systems.

CrowdStrike seeks a Full Stack Engineer III to design and build internal applications using React/Next.js and Go, implement AI-driven agentic systems and LLM integrations, develop REST/gRPC APIs, and contribute to CI/CD and Kubernetes-based deployment automation. Role requires 5+ years of large-scale production experience and strong skills with PostgreSQL and cloud platforms (GCP/AWS/Azure).

Join the Elasticsearch core/infra team to design and implement foundational, horizontally scalable features and shared platform functionality (services, settings, scripting, plugins) in Java. Responsibilities include solving performance and concurrency issues, improving observability and CI/CD workflows, supporting operations and on-call investigations, and leading cross-team projects. Typical starting salary range: €61,100–€96,600 (base salary).

Join the Elasticsearch Core/Infra team to design and implement foundational, horizontally scalable platform features and APIs, improve observability and performance, automate developer workflows, and lead cross-team projects. The role requires strong Java skills (including low-level topics such as concurrency and classloaders), experience with CI/CD and cloud-native tooling, and familiarity with observability and performance debugging.

Work on foundational infrastructure and shared functionality for Elasticsearch (services, settings, scripting, logging/telemetry, orchestration). Design and implement horizontally scalable features and APIs, solve performance and concurrency issues, improve observability, own operational investigations, and lead cross-team projects. Requires strong core Java skills, experience with concurrency and low-level Java, API design, algorithms/data structures, CI/CD practices, and experience with observability and cloud/serverless environments.

MISUMI Americas seeks a Senior Backend Engineer with 5+ years of backend experience (Node.js/TypeScript) to design and operate scalable, event-driven systems on AWS (SQS, Lambda, EC2, RDS). The role emphasizes building REST/GraphQL APIs, testing and observability, working with AI coding agents, and ensuring correctness in production. Must be a U.S. citizen or lawful permanent resident.

Join the Repository Management team to develop secure, well-tested, and performant backend services and APIs using Ruby and GraphQL. Work includes data modeling, SQL tuning, caching, rate limiting, testing, observability, on-call incident response, and integrating AI coding tools where appropriate. Role is remote with hiring in the United Kingdom.

Grafana Labs seeks a Senior Software Engineer for the Session Replay team (remote, USA EST) to lead technical direction and architectural evolution across frontend, backend, and data systems. Responsibilities include designing columnar/analytical storage solutions, defining data models and ingestion pipelines, building investigation workflows that connect replay with logs/metrics/traces, collaborating with other Grafana teams, engaging with customers, and mentoring engineers. Primary technologies mentioned: Go, TypeScript/React, columnar storage, S3/GCS/Azure Blob, and MySQL. Compensation range for the US is USD 154,445–185,334 base per year.

Role focuses on end-to-end technical ownership of Session Replay, evolving backend architecture toward columnar/analytical storage, designing data models and ingestion pipelines, and integrating replay with logs/metrics/traces. Technologies mentioned include Go, TypeScript/React, columnar databases, object storage (S3/GCS/Azure), and MySQL. Position is remote and targeted to applicants in Canada (EST time zones); base salary range in Canada is CAD 164,490–197,389.

Mozilla is hiring a Senior Software Engineer to design, build, deploy, and operate backend services for Ecosystem Services. The role emphasizes end-to-end ownership, collaboration with frontend, CloudEng and product teams, on-call production support, observability (OpenTelemetry, Sentry, Prometheus, Grafana), and hands-on GCP and Docker-based deployment experience. Required: 4+ years backend development experience with Python, TypeScript/Node.js, or Rust and familiarity with PostgreSQL and SQL optimization.